So apparently Spider-Man 2099's suit is actually supposed to be black with blue shading, despite the fact that every adaptation just makes it blue. : r/TwoBestFriendsPlay
Spider-Man: Into the Spider-Verse Spider Man 2099 Black Suit Cosplay C – TrendsinCosplay
Black Suit Spider-Man 2099 by nickspartan300 on DeviantArt
Hot Toys Spider-Man (Spider-Man 2099 Black Suit) Cosbaby (S) Bobble-Head